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AMC 12 2025a Problem 17

  • Paper

The polynomial (z+i)(z+2i)(z+3i)+10(z + i)(z + 2i)(z + 3i) + 10 has three roots in the complex plane, where i=−1i = \sqrt{-1}. What is the area of the triangle formed by these three roots?

\textbf{(A)}~6 \textbf{(B)}~8 \textbf{(C)}~10 \textbf{(D)}~12 \textbf{(E)}~14

Dataset text AMC 12 2000 to 2025. Quoted with source.

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A

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